How often should the spark plugs be replaced on the Envision?

[DelBrynlee]

The spark plugs on the Envision should be replaced every 40,000 to 60,000 kilometers. Spark plugs (commonly known as sparking plugs) function by discharging the high-voltage pulses sent through the high-tension leads, breaking down the air between the two electrodes to generate an electric spark, which ignites the air-fuel mixture in the cylinder. The main types of spark plugs include: standard spark plugs, extended tip spark plugs, electrode spark plugs, seat-type spark plugs, pole-type spark plugs, and surface-gap spark plugs. The Envision is a mid-size SUV produced by SAIC-GM Buick, equipped with a 1.5T 169-horsepower L4 engine and a 7-speed dual-clutch transmission, delivering a maximum power of 124kW and a maximum torque of 250Nm.